Results 81 to 90 of about 6,477 (211)

Polarimeter

, 2022
Das Instrument wurde um 1880 von R. Rothe aus Prag gekauft. Es handelt sich um ein sog. Halbschattenpolarimeter nach F. Lippich und dient der genauen Bestimmung der optischen Aktivität (Drehung der Polarisationsebene von polarisiertem Licht) transparenter Festkörper (z.B. Quarz) oder von Flüssigkeiten (z.B. Zuckerlösung). (K.R./P.G.
openaire   +1 more source

METHODS OF PRODUCING MULTIFREQUENCY GENERATION IN THE LASER TERAHERTZ RESONATOR [PDF]

Радиофизика и электроника, 2015
Terahertz lasers are used as sources of radiation in different heterodyne radio physical devices. Stable frequency difference between the heterodyne and signal channels is required when using these devices.
V. P. Radionov, P. K. Nesterov, V. K. Kiseliov   +2 more
doaj   +1 more source

MAXIPOL: Cosmic Microwave Background Polarimetry Using a Rotating Half-Wave Plate

, 2006
We discuss MAXIPOL, a bolometric balloon-borne experiment designed to measure the E-mode polarization of the cosmic microwave background radiation (CMB).
Abroe, M. E., Ade, P. A. R., Bock, J., Borrill, J., Boscaleri, A., Collins, J., de Bernardis, P., Hanany, S., Jaffe, A. H., Johnson, B. R., Jones, T., Lee, A. T., Levinson, L., Matsumura, T., Rabii, B., Renbarger, T., Richards, P. L., Smoot, G. F., Stompor, R., Tran, H. T., Winant, C. D., Wu, J. H. P., Zuntz, J.   +22 more
core   +4 more sources

O/IR Polarimetry for the 2010 Decade (GAN): Science at the Edge, Sharp Tools for All [PDF]

, 2009
Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of Galactic science. Community-based White Paper to Astro2010 in response to the call for such papers.Comment: White Paper to the ...
Adamson, Andy, Andersson, B. - G., Antonucci, Robert, Axon, David, Cellino, Alberto, Clemens, Dan, De Buizer, James, Hines, Dean C., Hoffman, Jennifer L., Jones, Terry Jay, Koshimoto, Makoto, Lazarian, Alexander, Magalhaes, Antonio Mario, Masiero, Joseph, Packham, Christopher C., Perlman, Eric S., Perrin, Marshall, Shinnaga, Hiroko, Sparks, William, Vilega Rodrigues, Claudia, Whittet, Doug   +20 more
core   +3 more sources

Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol

, 2012
The SPTpol camera is a dichroic polarimetric receiver at 90 and 150 GHz. Deployed in January 2012 on the South Pole Telescope (SPT), SPTpol is looking for faint polarization signals in the Cosmic Microwave Background (CMB).
Ade, Peter A. R., Aird, K. A., Austermann, J. E., Beall, J. A., Becker, D., Benson, B. A., Bleem, L. E., Britton, J., Carlstrom, J. E., Chang, C. L., Cho, H.-M., Crawford, T. M., Crites, A. T., Datesman, A., de Haan, T., Dobbs, M A., Everett, W., Ewall-Wice, A., George, E. M., Halverson, N. W., Harrington, N., Henning, J. W., Hilton, G. C., Holland, Wayne S., Holzapfel, W. L., Hubmayr, J., Irwin, K. D., Karfunkle, M., Keisler, R., Kennedy, J., Lee, A. T., Leitch, E., Li, D., Lueker, M., Marrone, D. P., McMahon, J. J., Mehl, J., Meyer, S. S., Montgomery, J., Montroy, T. E., Nagy, J., Natoli, T., Nibarger, J. P., Niemack, M. D., Novosad, V., Padin, S., Pryke, C., Reichardt, C. L., Ruhl, J. E., Saliwanchik, B. R., Sayre, J. T., Schaffer, K. K., Shirokoff, E., Story, K., Tucker, Carole, Vanderlinde, K., Vieira, J. D., Wang, G., Williamson, R., Yefremenko, V., Yoon, K. W., Young, E.   +61 more
core   +1 more source

Global Long‐Term Trends in Ionospheric TEC From GNSS Observations With Local‐Time Dependence

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Long‐term ionospheric changes are expected as a consequence of thermospheric cooling driven by increasing greenhouse gas concentrations. We analyze global ionospheric total electron content (TEC) derived from GNSS observations for 2000–2024 using the high‐resolution ISEE data set.
Bruno S. Zossi, Franco D. Medina, Trinidad Duran, Dario J. Zamora, Ana G. Elias   +4 more
wiley   +1 more source

A far infrared polarimeter

New Astronomy, 2004
17 pages, 12 figures, 1 table, submitted to New ...
CATALANO, Andrea, CONVERSI, Luca, DE GREGORI, Simone, DE PETRIS, Marco, LAMAGNA, Luca, MAOLI, Roberto, SAVINI, Giorgio, BATTISTELLI, Elia Stefano, Angiola Orlando   +8 more
openaire   +3 more sources

Submillimeter Polarimetry with PolKa, a reflection-type modulator for the APEX telescope [PDF]

, 2014
Imaging polarimetry is an important tool for the study of cosmic magnetic fields. In our Galaxy, polarization levels of a few up to $\sim$10\% are measured in the submillimeter dust emission from molecular clouds and in the synchrotron emission from ...
Güsten, Rolf, Hezareh, Talayeh, Kovacs, Attila, Kreysa, Ernst, Menten, Karl M., Schuller, Frederic, Siringo, Giorgio, Weiss, Axel, Wiesemeyer, Helmut   +8 more
core   +2 more sources

Engineering Chiroptical Interactions through Integrating Plasmonic Arrays with Cholesteric Nanocellulose

Advanced Materials, Volume 38, Issue 16, 17 March 2026.
In this study, we demonstrate how the combination of plant‐based cellulose and gold nanoparticle lines produces robust, tunable chiral light control in composite films. The resulting plasmonic cellulose composite exhibits a strong plasmonic CD at the surface lattice resonance, along with an inversion of chiroptical response upon reversing the ...
Han Tao, Sunghwan Jo, Guang Chu, Xiaoyu Qi, Irene Estévez, Angel Lizana, Wenyang Xu, Shengwei Deng, Agustin Mihi, Eero Kontturi   +9 more
wiley   +1 more source

Low-energy deuteron polarimeter [PDF]

AIP Conference Proceedings, 2005
44 pages, 24 figures, Master's thesis at the University of ...
openaire   +2 more sources